Voltage comparator circuit
US4045686A · kind A · utility
10Cited by
1References
12Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Nov 24, 1975 |
| Grant date | Aug 30, 1977 |
| Priority date | — |
| Expiry date | Nov 24, 1995 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01R19/0038
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A voltage comparator circuit suitable for a semiconductor integrated circuit device comprises a pair of time constant circuits each of which includes a variable impedance, such as a depletion type MISFET, and a capacitor, the variable impedance being controlled by input voltages which are to be compared with one another and a flip-flop circuit which is stabilized to predetermined values on the basis of the comparison between the time variations of the outputs of the time constant circuits.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.